package demo;


import io.netty.util.HashedWheelTimer;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
* 
* @author : feixiang.li
* @since : 2025-09-08 14:21
*/
public class Test112 {
    public static void main(String[] args) {
        List<String> list=new ArrayList<>();
        list.add(null);
        list.add("");
        list.add("1");
        Set<String> set =new HashSet<>(list);
        System.out.println(set);
//        System.out.println(1);
//        HashedWheelTimer hashedWheelTimer = new HashedWheelTimer();
//        hashedWheelTimer.newTimeout(timeout -> {
//            System.out.println(2);
//        }, 1000, java.util.concurrent.TimeUnit.MILLISECONDS);
    }
}
